2137191439 has 2 divisors, whose sum is σ = 2137191440. Its totient is φ = 2137191438.

The previous prime is 2137191403. The next prime is 2137191467. The reversal of 2137191439 is 9341917312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2137191439 - 2²⁵ = 2103637007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2137191479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068595719 + 1068595720.

It is an arithmetic number, because the mean of its divisors is an integer number (1068595720).

Almost surely, 2^2137191439 is an apocalyptic number.

2137191439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137191439 is an equidigital number, since it uses as much as digits as its factorization.

2137191439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 2137191439 is about 46229.7678882341. The cubic root of 2137191439 is about 1288.0947454753.

The spelling of 2137191439 in words is "two billion, one hundred thirty-seven million, one hundred ninety-one thousand, four hundred thirty-nine".